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AMD Geode™ LX Processors Data Book 235
GeodeLink™ Memory Controller Register Descriptions
33234H
6.2.2.15 Page Open Status (MC_CFPG_OPEN)
6.2.2.16 Reserved Register
This register is reserved and should not be written to.
MSR Address 2000001Eh
Typ e RO
Reset Value 00000000_0000FFFFh
MC_CFPG_OPEN Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
RSVD
313029282726252423222120191817161514131211109876543210
RSVD PGOPEN1 PGOPEN0
MC_CFPG_OPEN Bit Descriptions
Bit Name Description
63:16 RSVD Reserved. Reads back as 0.
15:8 PGOPEN1 Page Open DIMM 1. Page open indication of the second DIMM. Each bit position repre-
sents a page and a 1 indicates an open page. All pages are initialized ‘open’. After reset,
a ‘precharge all’ command closes all the banks.
7:0 PGOPEN0 Page Open DIMM 0. Page open indication of the first DIMM. Each bit position represents
a page and a 1 indicates an open page. All pages are initialized ‘open’. After reset, a ‘pre-
charge all’ command closes all the banks.
MSR Address 2000001Fh
Typ e RW
Reset Value 00000000_00000000h